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Finding the Fourth Proportional to 3,442.08, 5,163.10 and 976.90

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Solution

The fourth proportional to 3,442.08, 5,163.10 and 976.90 is: 1,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.08 : 5,163.10 = 976.90 : x
  2. Step 2: Convert to fraction form
    3,442.08/5,163.10 = 976.90/x
  3. Step 3: Cross multiply
    3,442.08x = 5,163.10 × 976.90
  4. Step 4: Simplify right side
    3,442.08x = 5,043,826.33
  5. Step 5: Solve for x
    x = 5,043,826.33/3,442.08
  6. Step 6: Final answer
    x = 1,465.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.